update = 6;
newplane = 6;
width = 30;
height = 21;

exit:		(  0  2 c ) ( 29  2 z )
		( 29 18 q ) (  0 18 e ) ;

beacon:		(  8 10 ) ( 21 10 ) ;

line:		[ (  1  3 ) (  7  9 ) ]
		[ (  7 11 ) (  1 17 ) ]
		[ ( 28  3 ) ( 22  9 ) ]
		[ ( 22 11 ) ( 28 17 ) ]
		[ (  9 10 ) ( 20 10 ) ] ;
